Padlock



G. MILONE.

PADLOCK. APPLICATION FILED APR. I9, I920.

Patented Nov. 16, 1920. 7

s66. 11/ a um me ELM/H1107. mm W flu;

plat PATENT OFFICE.

GAETANO MILONE, 0F MIDDLETOWN, CONNECTICUT.

PADLOGK.

Specification of Letters Patent.

Patented Nov. 16, 1920.

Application filed April 19, 1920. Serial No. 375,004.

To all whom it may concern:

Be it known that I, GAnTANo MILoNn, a subject of the King of Italy,residing at Middletown, in the county of Middlesex and State ofConnecticut, have invented certain new and useful Improvements inPadlocks, of which the following is a specification.

My invention relates to improvements in padlocks, and the object of myimprovement is to produce a padlock that is safe and re liable in use,in that it by reason of its peculiar construction is relativelydifficult to be opened accidentally or intentionally by unauthorizedpersons, and that at the same time is of relatively simple construction,so

7 as to beeconomical to manufacture.

In the accompanying drawing Figure 1 is a front elevation of my improvedpadlock. r

Fig. 2 is a rear elevation of the same. Fig. 3 is a side elevation ofthe key. Fig. 4 is an end elevation of the same.

Fig. 5 is afront elevation with the cover to the casing removed.

Fig. 6 is a front elevation of the body portion ofthecasing. I

Fig. 7 is a sectional view on the line 7-7 of Fig. 6.

Fig. 8 is a front elevation, in part broken away, with the key inposition and the parts in the retracted position.

Fig. 9 is a front elevation of the cover with the key-hole plateremoved.

Fig. 10 is a side elevation of the cover structure, with the key-holeplate in the open position.

My improved padlock comprises a lock body or lock proper 10 that isprovided with a bow or shackle 11, one end 12 of the said shackle beingpivotally connected to the said body by means of a pivotal pin 13 andthe other end 14 thereof being provided w th a tongue 15 that is adaptedto progect 1nwardly through an opening 16 in the top wall of the body 10into the interior of the said body lOwhere it is secured by suitablelocking mechanism to be described.

The lock body 10 comprises the stud mechanism, housed generally in acasing that 1s composed of a casing body 17 and a cover 18.

The said casing body 17 comprises a shelllike structure having aback-plate19 and a border wall supported thereby, the said border wallbeing designated generally by the character 20. The border wall 20 isinterrupted at the top on one side as shown at 21 to provide an openingfor housing the pivotal end 12 of the shackle 11, already mentioned, andon the other side has the opening 16, already mentioned, for admittingthe tongue 15 on the locking end 14 of the said shackle 11.;

The cover 18 comprises generally a platelike structure that fits againstthe border wall 20 andis held in place by a plurality of rivets 22. v

On each of the two faces is a vertically directed structure of specialcharacter as follows :Onthe rear face, slidably mounted on theback-plate 19 for vertical movement,'is the plate'23 that serves as therelease plate'or tripping plate for releasing the key-hole plate 24 thatis hinged to the front cover 18.- The guide means for the said slidingrelease plate 23 comprises at the upper end portion a pin 25 that issecured to the back-plate 19, extends through a slot 26 in the slidingplate 23, and has a head 27 on the end at the rear that is in bearingengagement with the rear face, of the said sliding plate '23. The head27 is of vertically elongated form, suitably to cover the slot 26. v

The casing is provided with a vertically directed slot 28 through whichprojects a pin 29 that is mounted on thelower end portion of thevertically sliding release plate 23, the said pin 29 extending forwardlywithin the interior of the said casing substantially across the interiorspace.

The slidingplate 23 is normally positioned in the upper position, aslimited by the slots mentioned, and is moved downwardly to release'thekey-hole plate 24 in opposition to a positioning spring 30.

. The said spring 30 is made of sheet spring material, is secured to theside wall 20 in any proper manner by one end, as by means of the lowercasing rivet 22, and extends generally horizontally across the lowerportion of the interior spaceof the casing, the free end portion 31bearing upwardly against the pin 29, the body portion 32, intermediatethe said ends being adjacent the 'middle of the lock structure andaccessible for being engaged by the catch 33 that is provlded endportion 31 of the said sprin'g'32, as dc-' scribed.

Thus; asdeScribed, theipin 29 serves as guide means for the slide plate23"a'nd also as the releaslng means for releasingthe keyhole plate 24.

The catch 33 isadapted to slide into en-- gagement with the upper faceof the body portion 32 of the spring 30 and is provided on the lowerface,tl1at is opposed to the adapted to receive the said opposed body" 25" portion 32 for locking thelieyhole plate 24 in the closed position.

The hey-hole plate 2 1 isan elongated plate that isoperat velymountedon'the cover 18,

is housed between two side strips 35 that are fixed to the front face ofthe said cover 18, and is hinged by its upper end tothe said sidestrips35 by means ofa pivotal pin 36 so as to beadapted to swing toward andaway from the said cover'l8. The catch 33 is mounted on the rear face ofthe key-hole plate 2 1 andalsomounted on the said rear face'is as r11137 that en 'a es with the o 3- p b b O posediront face of the cover 18and that serves to force the ke"'-hole' ala'te 24.- out wardly from thehousing space between the sidestrips 35 when the catch 33 is releasedfrom its engagement with the spring 30.

The key-hole plate at for admitting the bit end 39 of the key ac.

The key post ail for the key is provided inthe formrof a projectionmounted on the baclr plateltl and fitsa, hole d2 in the end '1, memberalby a-cloeh 'Theengagement wlth th'ebolt member 43 of the key 10 and thebit portion 39 extend'sradially from the said end or hub portlon 39suitably for engaging with the bolt;

wise movement.

effected through the medium eta lug 45 that is in the path of the bitportion 39 and that extends downwardly from the body portlon 46 of thesaid bolt member l.

The bolt member 1 i is positioned gene any transversely of the lock body10 though actually, as shown bein li htly i ported for sliding back andforth transverse direction for a lnnited movement,

is normally projected toward the left by normally covers the key-hole 33that is provldedin thecover 18 45 m ans of: the bolt spring 4&7 thatengageswith the right end portion 18 of the body portion 16.

y The lug 45 extends downwardly from the body portion 16 and extendinggenerally transversely or outwardly from the left end of the bodyportion 16 is the bolt 49 that is dapted to engage with the tongue 15. Ashown, the bolt 19 engages with the tongue 15 by means of a hole 50therein; through which the bolt is entered. L

For guiding the bolt member el iin such transversemovement the bodyportion 46 is provided with a slot 51 that is in engagenent withcooperating-means on thecasing body 17 in the form of twofixed pins 52that re ositioned in properrelatlon for ei'l'ecting such guiding.

The extreme lower right hand corner 53 of the key'bit 39 contacts withthe lower guide pin 29 of the sliding plate 23 when the bit 39 is inregistration with the keyhole 38 andserves asa guidein entering andwithdrawing the key and prevents turning the key the wrong way foropening the" lo ck when the sliding plate 23 is in'the' normal uppermostposition; Vi hen 'thesli'ding plate is lowered trom'the normal uppermostposit1o'1 "'thepin 2911's below""the path ofthe key, which can then: be"turned'in' the counterclockwise"dii'ectio1iior'engagement with the rearor right's'ide' ofthelug 15 on the bolt member a l. Such movementof theIke'y'may he desired for relieving or cooperating with thebolt]'inemben'spring 17 inthrdwin the holt. r

The sai'd bolt member's'pringfl is made of spri strip sheetmaterial,"bent into approx imately V-shape so as to have two'arms, oneengaging with the boltmembe'r 44f and the other against one of the"casing rivets 22, the middle portion being'formedin-to an eye 54? forbeing 'mou11ted on a supporting pin 55 that 'isprovide'don the casingbody 17. As described, the key-hole, which is provided in the frontface, is coveredand protected by a key hole' plate that is mounted onthe front plate or front face,:'and the said key-hole plate islo'ckedinsuch"protect ing osition by means of a cooperatinglocking devieethat isreleased by a 'platethat is slid'ably mounted. on the backplate or backface.

' 7 Also; the internahlocking mechanism is 'such'as to efiectasafeanc'l-reliable locking I claim as my inyention:+

1. A padl'oek having aasingmn is provided with "atplate-like' fron't'wall iand a plate-like-back wall and having alkeyhole opening in thesaid front fw'alhf'afkeyhole guard plate hinged to the said-front walland having a catch pin on the rear face for being projected into theinterior of'the cas ing, a transversely directed spring memherpositioned within the casing, supported movement, and the said backslide plate 10 by one end, and arranged to engage with serving as thesupport for operatively supthe said catch pin, a release pin extendedporting the said release pin.

into the said casing and having contact en- 2. A padlock as described inclaim 1, the gagement with the said spring, guide means said release inbeing positioned so as to for the said release pin in the form of aserve as gui e means for the key when ad- 15 slot that is provided inthe said back wall mitted to the lock for operating the lock of thecasing, a back slide plate mounted on mechanism.

the said back wall for longitudinal sliding GAETANO MILONE.

